Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

382
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
382
Reconstruction of Signal using Interpolation01:10

Reconstruction of Signal using Interpolation

167
Signal processing techniques are essential for accurately converting continuous signals to digital formats and vice versa. When a continuous signal is sampled with a period T, the resulting sampled signal exhibits replicas of the original spectrum in the frequency domain, spaced at intervals equal to the sampling frequency. To handle this sampled signal, a zero-order hold method can be applied, which creates a piecewise constant signal by retaining each sample's value until the next...
167
Relative Motion Analysis using Rotating Axes01:25

Relative Motion Analysis using Rotating Axes

443
Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
443
Interference and Diffraction02:18

Interference and Diffraction

31.3K
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
31.3K
Curvilinear Motion: Rectangular Components01:23

Curvilinear Motion: Rectangular Components

401
Curvilinear motion characterizes the movement of a particle or object along a curved path, notably evident when envisioning a car navigating a winding road. If the car starts at point A, its position vector is established within a fixed frame of reference, where the ratio of the position vector to its magnitude signifies the unit vector pointing in the position vector's direction.
As the car advances, its position evolves over time. Quantifying the car's velocity involves computing the...
401
Shearing Stresses in a Beam: Problem Solving01:14

Shearing Stresses in a Beam: Problem Solving

157
A cantilever beam with a rectangular cross-section under distributed and point loads experiences shearing stresses. The analysis begins by identifying the loads acting on the beam. Then, the reactions at the beam's fixed end are calculated using equilibrium equations. The vertical reaction is a combination of the distributed and point loads, while the moment reaction is the sum of their moments. The shear force distribution along the beam, resulting from these loads, is established by...
157

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

PsychAdapter: adapting LLMs to reflect traits, personality, and mental health.

NPJ artificial intelligence·2026
Same author

Language-based EMA assessments help understand problematic alcohol consumption.

PloS one·2024
Same author

Modeling Latent Dimensions of Human Beliefs.

Proceedings of the ... International AAAI Conference on Weblogs and Social Media. International AAAI Conference on Weblogs and Social Media·2023
Same author

A deep learning approach to personality assessment: Generalizing across items and expanding the reach of survey-based research.

Journal of personality and social psychology·2023
Same author

AI-based analysis of social media language predicts addiction treatment dropout at 90 days.

Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology·2023
Same author

Multimodular vascularized bone construct comprised of vasculogenic and osteogenic microtissues.

Biotechnology and bioengineering·2022

相关实验视频

Updated: May 30, 2025

Bringing the Visible Universe into Focus with Robo-AO
10:35

Bringing the Visible Universe into Focus with Robo-AO

Published on: February 12, 2013

19.4K

在旋转剪切干扰仪中,通过代优化进行绝对模态波面重建.

Huy Vu, Tiendung Vu

    Optics letters
    |January 31, 2025
    PubMed
    概括

    这项研究引入了一种代优化方法,用于使用旋转剪切干扰仪的波面重建. 该技术准确地重建波浪,即使在杂的条件下,以最小的误差.

    科学领域:

    • 光学工程是指光学工程.
    • 干涉测量是干涉测量的方法.
    • 波浪前线传感 波浪前线传感

    背景情况:

    • 精确的波面重建对于光学系统性能至关重要.
    • 旋转剪切干扰仪在简单性和稳定性方面具有优势.
    • 现有的方法可能会在绝对波面确定和噪声灵敏度方面扎.

    研究的目的:

    • 开发一种代优化方法,用于在旋转剪切干扰仪中进行波面重建.
    • 为了实现高度统一的绝对波重建.
    • 验证在噪音条件和实验环境下方法的性能.

    主要方法:

    • 使用Zernike多项式来表示波浪阵线.
    • 同时优化两个不正确的剪裁数量.
    • 采用一个代优化算法.
    • 实验验证使用Shack-Hartmann传感器进行比较.

    主要成果:

    • 在根平均平方 (RMS) 波面重建中实现了高均性.
    • 在噪音模拟下,在μλ范围内的低重建误差 (峰值到谷和RMS) 已被证明.
    • 在一个不完美合并的光源中成功识别了不对称的偏差.

    更多相关视频

    The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
    12:14

    The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

    Published on: August 12, 2013

    21.7K
    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
    10:28

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

    Published on: July 5, 2016

    10.2K

    相关实验视频

    Last Updated: May 30, 2025

    Bringing the Visible Universe into Focus with Robo-AO
    10:35

    Bringing the Visible Universe into Focus with Robo-AO

    Published on: February 12, 2013

    19.4K
    The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
    12:14

    The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

    Published on: August 12, 2013

    21.7K
    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
    10:28

    Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

    Published on: July 5, 2016

    10.2K

    结论:

    • 提出的代优化方法可以实现准确而强大的波浪前沿重建.
    • 该方法与已建立的波纹传感技术有很好的一致性.
    • 这种技术适用于需要精确波面表征的应用,即使光学设置不完美.